# Anomalous magnetotransport and cyclotron resonance of high mobility magnetic 2DHGs in the quantum Hall regime

## TL;DR

This paper investigates the magnetotransport and cyclotron resonance in high mobility magnetic 2D hole systems within InAs quantum wells, revealing localization phenomena and resonance interactions influenced by magnetic impurities.

## Contribution

It presents novel experimental observations of anomalous magnetotransport and cyclotron resonance behaviors in magnetic 2D hole systems with manganese impurities.

## Key findings

- Localization phenomena in magnetotransport
- Anticrossing in cyclotron resonance
- Distinct resonance features in infrared spectroscopy

## Abstract

Low temperature magnetotransport measurements and far infrared transmission spectroscopy are reported in molecular beam epitaxial grown two-dimensional hole systems confined in strained InAs quantum wells with magnetic impurities in the channel. The interactions of the free holes spin with the magnetic moment of 5/2 provided by manganese features intriguing localization phenomena and anomalies in the Hall and the quantum Hall resistance. In magnetic field dependent far infrared spectroscopy measurements well pronounced cyclotron resonance and an additional resonance are found that indicates an anticrossing with the cyclotron resonance.